As Lord Voldemort tightens his grip on both the Muggle and wizarding worlds, Hogwarts is no longer a safe haven. Harry suspects perils may even lie within the castle, but Dumbledore is more intent upon preparing him for the final battle fast approaching. Together they work to find the key to unlock Voldemorts defenses and to this end, Dumbledore recruits his old friend and colleague Horace Slughorn, whom he believes holds crucial information. Even as the decisive showdown looms, romance blossoms for Harry, Ron, Hermione and their classmates. Love is in the air, but danger lies ahead and Hogwarts may never be the same again.
Unfortunately the movie Harry Potter and the Half-Blood Prince is not yet available on HBO Max.
| Directing | David Yates | Director |
| Writing | Steve Kloves | Screenplay |
| Writing | J.K. Rowling | Novel |
| Production | David Barron | Producer |
| Production | David Heyman | Producer |
| Production | Lionel Wigram | Executive Producer |
| Camera | Bruno Delbonnel | Director of Photography |
| Editing | Mark Day | Editor |
| Production | Fiona Weir | Casting |
| Art | Stuart Craig | Production Design |
| Art | Stephenie McMillan | Set Decoration |
| Costume & Make-Up | Jany Temime | Costume Design |
| Sound | Peter Gleaves | ADR Mixer |
| Sound | Peter Burgis | Foley Artist |
| Sound | Andie Derrick | Foley Artist |
| Sound | Ed Colyer | Foley Mixer |
| Sound | Glen Gathard | Foley Mixer |
| Sound | Robert Edwards | ADR Recordist |
| Sound | Antony Bayman | ADR Recordist |
| Costume & Make-Up | Chris Lyons | Special Effects Makeup Artist |
| Costume & Make-Up | Sarah Weatherburn | Hairstylist |
| Costume & Make-Up | Charlotte Rogers | Makeup Artist |
| Costume & Make-Up | Shaune Harrison | Prosthetic Makeup Artist |
| Costume & Make-Up | Paula Eden | Prosthetic Makeup Artist |
| Crew | David Holmes | Stunt Double |
| Crew | Tolga Kenan | Stunts |
| Crew | Marc Mailley | Stunts |
| Production | John Trehy | Co-Producer |
| Production | Tim Lewis | Associate Producer |
| Production | Tim Lewis | Unit Production Manager |
| Directing | Stephen Woolfenden | Second Unit Director |
| Directing | Jamie Christopher | First Assistant Director |
| Production | Simon Emanuel | Production Manager |
| Production | Russell Lodge | Production Manager |
| Costume & Make-Up | Nick Dudman | Makeup Designer |
| Visual Effects | Emma Norton | Visual Effects Producer |
| Visual Effects | Chris Shaw | Visual Effects Supervisor |
| Art | Neil Lamont | Supervising Art Director |
| Sound | James Mather | Supervising Sound Editor |
| Crew | Greg Powell | Stunt Coordinator |
| Art | Andrew Ackland-Snow | Supervising Art Director |
| Art | Martin Foley | Art Direction |
| Art | Rosie Goodwin | Set Decoration |
| Sound | Dominic Gibbs | Sound Effects Editor |
| Sound | Michael Fentum | Sound Effects Editor |
| Sound | Andy Kennedy | Sound Effects Editor |
| Sound | Jed Loughran | Sound Effects Editor |
| Sound | Jamie McPhee | Sound Editor |
| Sound | Stuart Hilliker | Sound Re-Recording Mixer |
| Sound | Mike Dowson | Sound Re-Recording Mixer |
| Costume & Make-Up | Charlotte Finlay | Costume Supervisor |
| Costume & Make-Up | Vivienne Jones | Assistant Costume Designer |
| Costume & Make-Up | Rupert Steggle | Assistant Costume Designer |
| Costume & Make-Up | Aimee Lisby | Assistant Costume Designer |
| Costume & Make-Up | Amanda Knight | Makeup Designer |
| Costume & Make-Up | Amanda Burns | Makeup Artist |
| Costume & Make-Up | Belinda Hodgson | Makeup Artist |
| Costume & Make-Up | Sharon Nicholas | Makeup Artist |
| Costume & Make-Up | Lisa Tomblin | Hair Designer |
| Costume & Make-Up | Paul Spateri | Prosthetic Makeup Artist |
| Costume & Make-Up | Mark Coulier | Prosthetic Makeup Artist |
| Visual Effects | Jill Brooks | Visual Effects Producer |
| Visual Effects | Gretchen Libby | Visual Effects Producer |
| Visual Effects | Oliver Money | Visual Effects Producer |
| Visual Effects | Paul J. Franklin | Visual Effects Supervisor |
| Visual Effects | Paul Riddle | Visual Effects Supervisor |
| Visual Effects | Dominic Sidoli | Visual Effects Producer |
| Visual Effects | Gregory Yepes | Visual Effects Supervisor |
| Visual Effects | Charlotte Loughnane | Visual Effects Producer |
| Visual Effects | Chloe Grysole | Visual Effects Producer |
| Crew | Donna Williams | Stunts |
| Crew | Alisha Smith | Stunt Double |
| Crew | Gabrielle Fritz | Stunt Double |
| Crew | Elaine Ford | Stunts |
| Crew | Joanna Whitney | Stunt Double |
| Crew | Joanna Whitney | Stunts |
| Crew | Helen Steinway Bailey | Stunts |
| Crew | Gemma Powley | Stunts |
| Crew | Tilly Powell | Stunts |
| Crew | Tina Maskell | Stunts |
| Crew | Charlotte Hunter | Stunt Double |
| Crew | Jade Gordon | Stunts |
| Crew | Sarah Franzl | Stunts |
| Crew | Amanda Foster | Stunts |
| Crew | Nina Armstrong | Stunts |
| Crew | Lucy Allen | Stunts |
| Sound | Nicholas Hooper | Original Music Composer |
| Art | Gary Tomkins | Art Direction |
| Art | Hattie Storey | Art Direction |
| Art | Tino Schaedler | Art Direction |
| Art | Alastair Bullock | Art Direction |
| Art | Sloane U'Ren | Art Direction |
| Art | Molly Hughes | Art Direction |
| Directing | Anna Worley | Script Supervisor |
| Editing | Hermione Byrt | First Assistant Editor |
| Editing | Kate Baird | First Assistant Editor |
| Sound | Stuart Wilson | Production Sound Mixer |
| Camera | Jaap Buitendijk | Still Photographer |
| Art | Rob Bliss | Concept Artist |
| Visual Effects | Ferran Domenech | Animation Supervisor |
| Directing | Matthew Sharp | Assistant Director |
| Costume & Make-Up | Richard Davies | Assistant Costume Designer |
| Visual Effects | Selwyn Eddy | Matchmove Supervisor |
| Visual Effects | Tim Burke | Visual Effects Supervisor |
| Visual Effects | John Moffatt | Visual Effects Supervisor |
| Visual Effects | John Richardson | Special Effects Supervisor |
| Visual Effects | Tim Alexander | Visual Effects Supervisor |
| Visual Effects | Nicolas Aithadi | Visual Effects Supervisor |
| Crew | Rowley Irlam | Stunts |
| Sound | Daniel Laurie | ADR Editor |
| Crew | Michael Byrch | Stunts |
